Forms of Energy
All plants need light energy to produce
food. Where does this light energy come
from?
The Sun
What is the name of our galaxy?
The Milky Way
How are igneous rocks formed?
When molten lava rock cools
True or False?
Two magnets have to touch each other to
make them attract or repel.
False. Magnets do not have to touch.
What is the definition of a physical
change?
A change of a substance from one form to
another without a change in its chemical
properties. (It does not result in the
formation of a new substance.)
What type of energy is produced at power
plants and then travels through wire to our
homes?
Electrical Energy
How long does it take for the moon to revolve around the Earth?
About one month (about 28 days)
What do all rocks contain?
All rocks contain one or more
minerals
Taylor put the North side of one magnet near
the South side of another magnet. What
happened next?
The magnets were attracted to each other, or
pulled together.
Which is an example of a physical change?
A. Baking a cake
B. Burning a candle
C. Breaking a crayon
D. Letting a banana go bad
C. Breaking a crayon is a physical change.
Energy is involved when you turn on a
lamp. The lamp changes electrical energy
into light energy. Which other form of
energy is also involved when the lamp is
on?
Thermal/Heat Energy
How long does it take for the Earth to revolve around the Sun?
365 days (1 year, 12 months)
Which rock has the following
characteristics: fossils, pieces of rock
and sediments?
Sedimentary rock
Which two tools could be used to
measure the volume of a steel cube?
A ruler or a graduated cylinder
List at least one way to indicate a physical
change may have occurred.
Change in size, shape, or state. No new
substance is created.
How does light energy travel?
Light travels in a straight line until it
comes in contact with an object or
substance
Name at least one kind of technology that
has helped scientists learn about the
Earth and space.
Telescopes, satellites, rockets, rovers,
space station, etc.
What is weathering?
The process of breaking down
rocks
Stephanie measured the amount of water in a
graduated cylinder and found it to be 15 mL. She
placed a golf ball in the water, and it sank to the
bottom of the cylinder. The volume of the water
with the golf ball in it was 24 mL. What is the
volume of the golf ball?
9 mL
Which is an example of a chemical change?
A. Boiling water
B. Burning a log
C. Breaking a crayon
D. Bending a paperclip
D. Burning a log is a chemical change.
What are some examples of objects that
use light energy in your home?
Here are some examples: Light bulb,
flashlight, candle (fire), television, laptop
computer, etc.
A new planet was discovered. It has relatively short years and has a solid surface. Should it be classified as an inner or outer planet?
Inner planet because inner planets are made of rock and metal (solids) and have relatively shorter years than outer planets.
Tamika goes hiking and finds a rock that looks
like it has been transformed by applying a lot
of heat and pressure. Which type of rock could
it be?
Metamorphic rock
Luis knows that the mass of one marker
is 3 grams. The marker box is 1 gram.
How much is the mass of the entire box
of 10 markers?
31 grams
Fireworks are being set off. Is this a
chemical change? Why or why not?
Yes, new substances are being created
with different properties. There is colorful
light, sound, and smoke being created.